Purnia vs Tirumala
Side-by-side air quality comparison between Purnia and Tirumala.
Live AQI from Open-Meteo CAMS (~45 km global model, updated hourly). Multi-year history from CPCB station data via aqinow.co pipeline (2016–2024, station-level daily records).
AQI Comparison
Pollutant-level comparison (PM2.5, PM10, O3, NO2, SO2, CO)▾
| Pollutant | Purnia | Tirumala |
|---|---|---|
| CO(ppb) | 745.93 | 124.00 |
| NO2(ppb) | 9.24 | 0.50 |
| O3(ppb) | 21.68 | 85.00 |
| PM10(µg/m³) | 51.23 | 8.80 |
| PM2.5(µg/m³) | 26.46 | 5.10 |
| SO2(ppb) | 6.95 | 0.70 |
| NH3(ppb) | 11.83 | — |
CPCB Multi-Year History (2016–2024)
Summary
Overview
In 2024, Purnia averaged an AQI of 133 while Tirumala averaged 89 — a 44-point (49%) gap, with Purnia the more polluted and Tirumala the cleaner of the two.
Seasonality & days
Purnia peaks in January, while Tirumala peaks in November. Purnia logged 3.7% Severe days and 33.699999999999996% Good-or-Satisfactory days; Tirumala was 0% Severe and 65.8% Good-or-Satisfactory. Longest clean-air streaks: Purnia 14 days, Tirumala 39 days.
Year-over-year progress
The worst recorded day for Purnia reached AQI 460 at Mariam Nagar (BSPCB) on 2022-12-15; Tirumala hit AQI 173 at Toll Gate (APPCB) on 2016-12-30.
Station-level disparity
Purnia spans 1 CPCB stations with a 0-point spread (min 176, max 176); Tirumala spans 1 stations with a 0-point spread (min 89, max 89).
Verdict
🏆 Tirumala has better air quality with an AQI of 9 compared to Purnia's 52.